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  • 1
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    Analysis of a solar collector field water flow network (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A number of methods are presented for minimizing the water flow variation in the solar collector field for the Solar Building Test Facility at the Langley Research Center. The solar collector field investigated consisted of collector panels connected in parallel between inlet and exit collector manifolds to form 12 rows. The rows were in turn connected in parallel between the main inlet and exit field manifolds to complete the field. The various solutions considered included various size manifolds, manifold area change, different locations for the inlets and exits to the manifolds, and orifices or flow control valves. Calculations showed that flow variations of less than 5 percent were obtainable both inside a row between solar collector panels and between various rows.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-X-3414 , E-8709
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Evaluation of initial collector field performance at the Langley Solar Building Test Facility (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The thermal performance of the solar collector field for the NASA Langley Solar Building Test Facility is given for October 1976 through January 1977. A 1,180 square meter solar collector field with seven collector designs helped to provide hot water for the building heating system and absorption air conditioner. The collectors were arranged in 12 rows with nominally 51 collectors per row. Heat transfer rates for each row were calculated and recorded along with sensor, insolation, and weather data every five minutes using a minicomputer. The agreement between the experimental and predicted collector efficiencies was generally within five percentage points.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-X-73677 , Ann. Meeting of the Am. Sect. of the Intern. Solar Energy Soc.; Orlando, FL; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Baseline performance of solar collectors for NASA Langley solar building test facility (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The solar collector field contains seven collector designs. Before operation in the field, the experimental performances (thermal efficiencies) of the seven collector designs were measured in an indoor solar simulator. The resulting data provided a baseline for later comparison with actual field test data. The simulator test results are presented for the collectors as received, and after several weeks of outdoor exposure with no coolant (dry operation). Six of the seven collector designs tested showed substantial reductions in thermal efficiency after dry operation.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-X-3505 , E-9036
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Evaluation of initial collector field performance at the Langley Solar Building Test Facility (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The thermal performance of the solar collector field for the NASA Langley Solar Building Test Facility is given for October 1976 through January 1977. An 1180 square meter solar collector field with seven collector designs helped to provide hot water for the building heating system and absorption air conditioner. The collectors were arranged in 12 rows with nominally 51 collectors per row. Heat transfer rates for each row are calculated and recorded along with sensor, insolation, and weather data every 5 minutes using a mini-computer. The agreement between the experimental and predicted collector efficiencies was generally within five percentage points.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: International Solar Energy Society; Jun 06, 1977 - Jun 10, 1977; Orlando, FL
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Initial operation of a solar heating and cooling system in a full-scale solar building test facility (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The Solar Building Test Facility (SBTF) located at Hampton, Virginia became operational in early summer of 1976. This facility is a joint effort by NASA-Lewis and NASA-Langley to advance the technology for heating and cooling of office buildings with solar energy. Its purposes are to (1) test system components which include high-performing collectors, (2) test performance of complete solar heating and cooling system, (3) investigate component interactions and (4) investigate durability, maintenance and reliability of components. The SBTF consists of a 50,000 square foot office building modified to accept solar heated water for operation of an absorption air conditioner and for the baseboard heating system. A 12,666 square foot solar collector field with a 30,000 gallon storage tank provides the solar heated water. A description of the system and the collectors selected is given here, along with the objectives, test approach, expected system performance and some preliminary results.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Joint Conference on Sharing the Sun: Solar Technology in the Seventies; Aug 15, 1976 - Aug 20, 1976; Winnipeg; Canada
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Initial operation of a solar heating and cooling system in a full-scale solar building test facility (1976)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The Solar Building Test Facility (SBTF) was constructed to advance the technology for heating and cooling of office buildings with solar energy. Its purposes are to (1) test system components which include high-performing collectors, (2) test the performance of a complete solar heating and cooling system, (3) investigate component interactions, and (4) investigate durability, maintenance and reliability of components. The SBTF consists of a 50,000 square foot office building modified to accept solar heated water for operation of an absorption air conditioner and for the baseboard heating system. A 12,666 square foot solar collector field with a 30,000 gallon storage tank provides the solar heated water. A description of the system and the collectors selected is printed along with the objectives, test approach, expected system performance, and some preliminary results.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-X-73519 , E-8931 , Intern. Solar Energy Soc. Conf.; Aug 15, 1976 - Aug 20, 1976; Winnipeg; Canada
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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